Sun-dial and compass



M. M. MADDEN.

SUN DIAL AND COMPASS.

APPL'iCATION FILED NOV. 21, 1919.

1 ,343 ,5 1 5. I Patented June 15, 1920.

IE1 E M.M.Mcuiden A m I UNITED STATES MURRAY M. MADDEN, 033 SHIPROCK, NEW MEXICO.

SUN-DIAL AND COMPASS.

Specification of Letters Patent.

Patented June 15, 1920.

Application filed November 21, 1919. Serial No. 339,800.

To all whom it may concern:

Be it known that I, MURRAY M. MADDEN, a citizen of the United States, residing at Shiprock, in the county of San Juan and State of New Mexico, have invented new and useful Improvements in Sun-Dials and Compasses, of which the following is a specification.

This invention relates to a combined com pass and sun dial made in the form of a watch and the principal object oi. the invention is to provide means for holding the movable parts stationary and in inoperative position when the device is not in use and for raising the gnomon and releasing the needle when the device is to be used.

Another object of the invention is to provide a cover for the parts when the'device is not being used. 7

The invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, reterence will be had to the accompanying drawings wherein like characters denote like or correspmiding parts throughout the several views and in which Figure 1 is a taco view of the device with the cover in open position and with. the gnomon in inoperative position;

Fig. 2 is a section on line 22 of Fig. 1;

Fig. 3 is a detailed view of the support for the gnomon;

Fig. e. a detailed view of the gnomon.

in those views 1 indicates the case which is made similar to a watch case and which is provided with a hinged cover 2. The dial 3 is provided with the usual compass indications with the hours arranged at the outer periphery of the dial and the degrees arranged concentrically therewith. The needle e or" the compass is arranged as usual and is connected in the ordinary way with the rotatable part 5 on the same for locking the needle against movement. A V-shaped strip 6 of any suitable material, extends over the crystal 9 with its point located at the center of the device and with its outer and wide end curving downwardly over the case to which it is secured in any suitable manner. The gnomon 8 is pivotally arranged on this strip so that it may lie flat on the crystal or may extend at right angles thereto. This gnomon is provided with a gear wheel 9 which engages with a similar wheel connected with the member 5 whereby the, gnomon may be moved. The gnomon is provided with a small clip 10 at its lower edge which. extends at right angles thereto and acts as a stop for limiting the upward swinging movementthereof.

It will thus be seen that the device may be carried in the pocket as an ordinary watch or compass and when it is desired to use the same it is simply necessary to press on the member 5 to release the cover, which is spring-controlled as in a watch. Then by rotating said member 5 the needle of the compass will be released and the gnomon will be raised so that both the compass and the sun dial may be used.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

What I claim is 1. A. device of the class described comprisins a case a dial having compass indications thereon, a compass needle carried by the case, a support extending over the dial, a gnomon pivotally mounted on said support, and means for operating the gnomon and locking and releasing the needle. I

2. A. device of the class described comprising a case having a spring cover, a dial tor the ass having compass indications thereon, a compass needle pivoted in the case, a supporting member connected with the edge of the case and. extending over the dial, a gnomon hin edly connected to said supporting member, a rotatable member and means connected therewith for operating the gnomon and locking and releasing the needle.

In testimony whereof I afiiX my signature.

MURRAY M. MADDEN. 

